Merge pull request #1030 from JohannesPfeifer/varobs_check

Condition test whether varobs was defined on existence of field

matlab/dynare_estimation_init.m

@@ -69,14 +69,14 @@ if options_.dsge_var && options_.presample~=0
     error('DSGE-VAR does not support the presample option.')
 end
 
-% Set the number of observed variables.
-options_.number_of_observed_variables = length(options_.varobs);
-
 % Test if observed variables are declared.
-if ~options_.number_of_observed_variables
-    error('VAROBS is missing!')
+if ~isfield(options_,'varobs')
+    error('VAROBS statement is missing!')
 end
 
+% Set the number of observed variables.
+options_.number_of_observed_variables = length(options_.varobs);
+
 % Check that each declared observed variable is also an endogenous variable.
 for i = 1:options_.number_of_observed_variables
     id = strmatch(options_.varobs{i}, M_.endo_names, 'exact');